Spring-tire.



S. MORRIS.

SPRING TIRE.

APPLICATION FILED 1AN.28,1915.

Patented Aug. 31, 1915.

EaZ/6727572( E.. Morris EMANUEL s'.y MoRRIsoFsjr'. noUIs, MIssoUnI SPRING-TIRE'.

To all whom-tmay/ concern: y

Be it known that I, EMANi-Inn S. MORRIS, a citizen of the United States of America, anda resident ofithe city of .St.k Louis,"in

the State .of Missouri, have invented cer# tain new and V useful 4Improvements i in SpringTires, of which theI followingli's a full, clear, and exact description, reference being had to the, accompanying drawings, forming a part of this speciication. V..My invention relates to al spring tire, one

ofthe objects being Vto produce a resilient tir-e, having spring holding devices that may beV readily removed from thewheel structure. Another. object is toprovide spring holding devices adapted'tormly'secure aktire casing to a wheel rim.

A further object isto y'prodi-ce v.a tirevhaving main springs which serveas cushions 4for the tire casing, in combination with au`xil\ iary springs adapted `to serve as cushions when the main springs'a-re subjectedl to an abnormal load. 1 c

The invention also includes certain specific details of construction whichwll be hereinafterdescribedand claimed. 1 Figure I is a fragmentary kside elevation, partly insection, illustrating the yieldable elements ofmy spring tire. v F ig. II is an enlarged transverse section of the tire. Fig. III is an enlarged detail view offone ofthe tire casing spreaders looking at the outer face thereof. Fig. IVis a fragmentary section showing the separable edges of the tire casing andthe spreader membersas they appear before the tire casing is placed on the rim looking at the inner face thereof.

1 designates Wheel spokes, 2 is ametal felly ring fitted to the outer ends of the spokes and secured thereto by means of nails 3 passing through the felly ring and' driven into the ends of'the spokes. The outer end of each spoke is preferably provided with a tenon 1, which is surrounded by a metallic anged abutment ferrule 4, the latter being fitted to the felly 2.

5 designates a rubber tire casing of the clencher type having the usual beads 6, and 7 designates a clenclier rim adapted to receive the beads 6. The tire casing is fitted to the rim in the 'usual manner, with its beads 6 arranged in the channels 7 at the margins of the rim.

Tire casing spreaders A of peculiar construction art arranged within the tire casing and secured to radial spring pockets 8 Application led January 28, 1915'. Serial No.,4,833.

which passthrough the rim and felly'- spreaders A arey located between and iittedy ,to the separable edges ofthe tire casing, yand the spring pockets 8L are screwed into said spreaderSgSo that the kspring pockets Vmay be operated to force-the tire beads 6 into the channels 7-. The spring pockets also serve as lmeansforcconnecting the metal rim 7V to' the metalfelly2. `Each springpocket is closed atl one end to form a spring seat lO,

' specification of refter'sjratet.' Y Patented AngLSL 1915. i

lso

and enlarged 4between its end` to formllank abutment, member 11j which engagesk the inner face ofthe felly 2. The abutment 11 is preferablyprovided with al non-circular outer face adaptedk to receive a wrench. g

, `12 and 12v designate spring seatmembers yfitted :tothe inne'rfface of theftire casing tread and provided with springholdingpins 13and 14. 1

`Main springs 15, arranged partly within the yspring pockets-8 `and partly withinthe tire casing, extend from the spring seatsl() tothe springrholding pins l13.v Auxiliary springs 16, arearrangedbetween lthe spring seat members 12 andthe tire casing' spreaders A. l' The outerends of the auxiliary "i springs; arecontracted, and these ends are secured to the spring` holding pins la by screws 17 having heads which` are larger than the, .insidefdiameters of the contracted ends of the springs 16.l l The main springs 15v normally serve ascushions for the tire,

`but the `auxiliary .springs 16 are normally ineffective, the inner ends of said auxiliary springsbeing free to move toward .and away fromithe tire casing spreaders A. The auxiliary springs are preferably made of heavier, or more rigid, material than the main springs and they are arranged to cooperate with the main springs when the wheel is subjected to an abnormal or excessive load. Each tire casing spreader A is provided with a pin 19 alined with a spoke 1 and serving as a :guide for an auxiliary sprin 16.` Each tire casing spreader A is also ormed with two inwardly projecting collars 27 which are internally screw threaded to receive two of the spring pockets 8 which lie between the spokes 1.

Owing tothe difficulty of tempering spiral springs, the main springs 15 are not of uniform strength, some of the springs being quite rigid while the others are comparatively free to yield under pressure. I preferably compensate for this lack of uniformity by placing washers 20, or other suitable fillers, between the inner ends of springsl and the seats 10, 'as shown in Fig. I. The

pressure of the main springs maybe re-` .f additionaliwashers in said spring pockets.

In assembling the differentelements of my' wheel, the spreaders A are preferably se` cured to the tire casing, as shown in/Fig.

IV, before the tirecasingis placed on Ythe rim. `The spring seat membersl2'and 12 are preferably permanently secured tothe tire casing in any suitablemannen-for .eX- ample, by lugs '2l embedded in the tire casing asseen infFig. II. -The means for securing the spreaders to the tire casing comprises transverse bars 22 each of which is securedto a vspreader A by means of a pin 23. Each lpin 23 is provided with a head23, and a spring j 25 (Fig. IV) is preferably arranged between said head and the spreader.

To secure the spreaders at predetermined points in the tire casing,the inner face of the latteris provided with recesses 26 (Fig. IV) andthe transverse bars 22 are arranged in said recesses. The spreaders are thus securely held at lpointsy where their screw threaded' openings 27 will'- register rwith notches 2.8,the latter being formed in the separable edgespof the tire casingto receive the spring pockets 8.- The spreaders may be securedto the tire casing'as shown in Fig. IV, before the tire casing is placed on the rim, orif desired, the partsmay be as-v sembled by placing one of the separable edges of the tire casing onto the rim, then applyingthe spreaders and their transverse vbars 26 to said edge, and thereafter placing the other edge of the tire casing between the spreaders and the bars 22. After the tire casing has been fitted to the rim, the springs are placed in the spring pockets and said pocketsi are inserted through the felly and rim and screwed into the collars 27 of the spreaders and the springs spring seat members. y

I claim e l. The combination with, a wheel rim of seated on the the clencher type, of'a 'clencher tire casing fitted to said rim, vspreaders within said casingat points adjacent to its separable edges, spring pockets passing through `said rim and screwed'into said spreaders, springs eX- tending from said spring pockets, and

means, independent of said spring pockets, for securing said spreaders to the casing;

'said means inclu-ding.transversepmembers secured to said spreaders andinterlocked with oneofthe separable ,edges ofthe casing.

2. The combination with a wheel rimY of the clencher type, of a 'clencher tire casing fitted to said rim, spreaders within said casing at points adjacent to its separable edges, spring pockets passing through said rim and screwed into saidspreaders, springs extending from said spring pockets, and means, independent of said spring pockets, for securing said spreaders to the casing, said means including transverse bars yieldingly secured to said spreaders, the separableedges ofthe casing being arranged between said bars and spreaders.

i E. s. MORRIS. In presence of-` f E. K. CLARK,

A..-J. MGCAULEY.

Copies of this patent may be obtainedfor vecents each, by addressing `the Commissioner of Patents.

e v Washington, D. C. 

